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(No Model.)

W. H. GREGG.. OONVEYER AND COOLER FOR WHITE LEAD.

. Patented Sept. 6, 1881.

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N. PETERS. Phumumu m m. Washington. D. c,

UNITED STATES.

PATENT OFFICE.

WILLIAM H. GREGG, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE SOUTHERN WHITELEAD COMPANY, OF SAME PLACE.

CONVEYER AND COOLER FOR WHITE LEAD.

SPECIFICATION forming part of Letters Patent No. 246,761, datedSeptember 6, 1881.

Application filed June 17, 1881.

To all whom it may concern:

Be it known that I, WILLIAM H. GREGG, of the city of St. Louis, in theState of Missouri, have invented a certain new and useful ImprovementinvOonveyers and Coolers for White Lead, 850., of which the following isa full, clear, and exact description, reference being had to theaccompanying drawing, formin g part of this specification.

My invention consists in a number of disks on a revolving shaft, incombination with an equal number of scrapers, as hereinafter fully setforth.

The drawing is a perspective view of my improvement, in which- A is avertical shaft, having a driving-pulley, B, and having suitable upperand lower bearings, as at O D.

Upon the shaft, arranged at suitable dis- 2o tances apart, is anumber ofdisks, E, two or more in number. I have shown five. These disks arefirmly secured to the shaft by any suitable means, so that they turnwith it and are not allowed to move vertically. They increase in sizedownward from the top, as

shown, and each one has preferably a shoulder, 6, to prevent the leadfrom spreading inward upon their faces. The upper face of each disk isscraped by an inclined scraper, F, on

0 one end of a spring-arm, F, which is secured by its other end to thebracket D, or to any other suitable stationary object.

The operation is as follows: The shaft is made to revolve slowly by anysuitable motive 5 power in the direction shown by the arrow on thepulley. As indicated by the arrows, the lead drops from a spout, G, ordirectly from a grinding-stone upon the upper disk outside its shoulderc, and is carried around by it un- 0 til it reaches the scraper of thatdisk, and as the disk continues to revolve the lead slides outward uponthe inclined scraper and drops off this disk upon the one beneath,behind the scraper of this second disk, as shown by the 5 arrow, andoutside its shoulder c. On this (No model.)

disk the lead is carried around until it comes to the scraper, whichremoves it in the same manner as the one above, and it drops upon thenext disk beneath behind its scraper, and thus it is conveyed from onedisk to another until 0 it has passed over any desired number. When itis scraped off the last disk it drops into the hopper ofanothergrinding-stone or elsewhere. When further grinding is not required itmay drop directly into the keg or other receptacle 5 in which it is tobe transported.

As the vertical edge of the shoulder e of each disk is cleaned by theinner end of the scraper, and as the edge of the disk is cleaned bymeans of a projection, f, of the scraper, it will be seen that the disksare kept perfectly clean.

My device is much more effectual as a conveyer than the simple troughheretofore used, which required one mans attention to keep it fromclogging, as the lead will not flow freely, and my device is of greatpractical importance, in that it cools the lead which has become heatedin the process of grinding, which is necessary before it can be barreledor packed away.

This device may also be used for conveying pulp-lead, lead in oil, orother lead or paste material.

Having thus described my invention, the following is what I claim as newtherein and desire to secure by Letters Patent:

1. As a conveyer and cooler for white lead, two or more revolving disks,differing in diameter, as described, and combined with two or moreinclined scrapers, as and for the pur- 8o pose set forth.

2. The combination of shaft A, adapted -to rotate disks E, havingshoulders e, and inclined scrapers F on spring-arms F, whose outer endsare secured to the bracket D, or its equivalent, all as and for thepurpose set forth.

WILLIAM H. GREGG.

Witnesses:

SAML. KNIGHT, GEo. H. KNIGHT.

